News
- Health & Medicine
COVID-19 vaccines may be ready for teens this summer
Vaccinating children against COVID-19 is a crucial step towards reaching herd immunity and returning to pre-pandemic life.
- Tech
A new laser-based random number generator is the fastest of its kind
A new laser’s chaotic light beam lets the device generate multiple number sequences at once, similar to throwing multiple dice at a time.
- Animals
A single male lyrebird can mimic the sound of an entire flock
The Australian birds, already famous for their impressive song-copying skills, appear to be replicating the sounds of a “mobbing flock” of birds.
- Animals
Having more friends may help female giraffes live longer
A more gregarious life, even while just munching shrubbery, might mean added support and less stress for female giraffes.
- Anthropology
Ardi may have been more chimplike than initially thought — or not
A contested study of hand and foot fossils suggests this 4.4-million-year-old hominid was a tree climber and branch swinger.
- Particle Physics
Protons’ antimatter is even more lopsided than we thought
The SeaQuest experiment finds that down antiquarks within the proton are more prevalent than up antiquarks.
- Paleontology
Climate change helped some dinosaurs migrate to Greenland
A drop in CO2 levels helped massive plant eaters called sauropodomorphs trek from South America to Greenland 214 million years ago, says a new study.
- Animals
A mountain lizard in Peru broke the reptilian altitude record
Liolaemus tacnae was photographed 5,400 meters above sea level in the Andes, breaking the highest elevation record for a reptile by about 100 meters.
- Planetary Science
Watch real video of Perseverance’s Mars landing
NASA’s Perseverance rover filmed its own landing on Mars. Here’s that video.
- Genetics
The first human genetic blueprint just turned 20. What’s next?
The Human Genome Project led to many medical advances. Deciphering 3 million African genomes and using new tech to fill gaps could lead to even more.
- Astronomy
Signs of a hidden Planet Nine in the solar system may not hold up
Hints of a remote planet relied on clumped up orbits of bodies beyond Neptune. A new study suggests that clumping is an illusion.
- Earth
A magnetic field reversal 42,000 years ago may have contributed to mass extinctions
The weakening of Earth's magnetic field beginning around 42,000 years ago correlates with a cascade of environmental crises, scientists say.
